As the co-author of the McGraw-Hill book, "Dealing with People You Can't Stand" and the author of the new McGraw-Hill book, "Dealing with Meetings You Can't Stand, Meet Less and Do More", I am constantly being asked, "What behavior types does Trump fall into?"  Those would be a combination of two. One is the "Think-They-Know-it-All" which is very ego driven. Out of this behavior there is constant one-upsmanship. If you were sick, they were sicker, if you had a big inauguration, they had a bigger one.  The other behavior is the Tank (bully).  To make matters more difficult, he has significant positional power. 

In this article I will explore how you deal with this trinity in a boss and how the Meeting Jet process can control it. 

https://www.business2community.com/communications/5-steps-to-defuse-the-bully-in-the-room-and-have-a-successful-meeting-02073377